diff --git a/pkgs/development/python-modules/approvaltests/default.nix b/pkgs/development/python-modules/approvaltests/default.nix
index 5bb9a5bf9e8a..7d2377938cf8 100644
--- a/pkgs/development/python-modules/approvaltests/default.nix
+++ b/pkgs/development/python-modules/approvaltests/default.nix
@@ -1,21 +1,34 @@
-{ lib, buildPythonPackage, fetchFromGitHub, pyperclip }:
+{ lib, buildPythonPackage, fetchFromGitHub
+, beautifulsoup4
+, empty-files
+, numpy
+, pyperclip
+, pytest
+}:
 
 buildPythonPackage rec {
-  version = "3.3.2";
+  version = "3.5.0";
   pname = "approvaltests";
 
   # no tests included in PyPI tarball
   src = fetchFromGitHub {
     owner = "approvals";
     repo = "ApprovalTests.Python";
-    rev = version;
+    rev = "v${version}";
     sha256 = "15blwjzd6nwh0kzxa9xxscxdn0vqwb1bax8d46wk01dcywdyd6ni";
   };
 
-  propagatedBuildInputs = [ pyperclip ];
+  propagatedBuildInputs = [
+    beautifulsoup4
+    empty-files
+    numpy
+    pyperclip
+    pytest
+  ];
 
   postPatch = ''
     substituteInPlace setup.py \
+      --replace bs4 beautifulsoup4 \
       --replace "pyperclip==1.5.27" "pyperclip>=1.5.27"
   '';